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export const map = (arr, ...args ) => Array.prototype.map.apply( arr, args );
export const csv = (arr, ...args ) => map( arr, ...args ).join(',');
export const collectionText = arr=> map(arr, e=>getNodeText(e)).join('');
const createEl = tag=> document.createElement(tag);
function nodeProp( tag, prop, val ){ const el = createEl(tag); el[prop]=val; return el; }
export function isNode(n){ return !!n?.nodeType; }
const nop = ()=>''
, isArr = a => Array.isArray(a) || (a && 'function' === typeof a.forEach)
, isT = (a,t) => typeof a === t
, isStr = a => isT(a, 'string')
, isNum = a => isT(a, 'number')
, isFn = a => isT(a, 'function')
, inWC = n => n.getRootNode().host
, hasAssigned = n=> inWC(n) && n.assignedNodes
, each = (arr, cb )=> (arr.forEach(cb),arr)
, clear = n => hasAssigned(n)
? n.assignedNodes().forEach( a => a.remove() )
: n.innerHTML=''
;
const node2text = { 1: n=>n.assignedNodes
? collectionText(n.assignedNodes()) || collectionText(n.childNodes)
: [ 'SCRIPT','AUDIO','STYLE','CANVAS','DATALIST','EMBED','OBJECT'
, 'PICTURE','IFRAME','METER','NOSCRIPT'
, 'SELECT','OPTGROUP','PROGRESS','TEMPLATE','VIDEO'
].includes(n.nodeName)? '' : n.innerText //collectionText(n.children)
, 3: n=>n.nodeValue
, 11:n=>collectionText(n.childNodes)
};
export const getNodeText = n => (node2text[n.nodeType] || nop)(n);
export const setNodeText = ( n, val ) =>
hasAssigned(n)
? n.assignedElements().forEach( e => e.innerText = val )
: n.innerText = val;
export const assignParent = (arr,n)=>arr.map( e=>n.appendChild(e))
export const collectionHtml = arr => map( arr, n=>n.assignedElements
? map( n.assignedElements(), e=>e.outerHTML ).join('')
: n.innerHTML
).join('');
export const html2NodeArr = html =>
{ let n = createEl('div');
if( isNode(html) )
n.append( html.cloneNode(true) );
else if( isArr(html) )
each(html, e=> each( html2NodeArr(e), i=> n.appendChild(i)) )
else
n.innerHTML = html;
const wrapIfText = e=>{
if( e.nodeType !== 3 )
return e;
const n = createEl('span');
n.append(e);
return n;
};
return [...n.childNodes].map(e=>(e.remove(),e)).map(wrapIfText);
};
export const addNodeHtml = ( n, val ) =>
{
const set = ( to, v )=> ( v instanceof Node
? v.remove() || to.append(v)
: html2NodeArr(v).forEach( e=>to.append(e) )
)
, append = v => hasAssigned(n)
? n.assign( ...n.assignedNodes()
, ...assignParent( each( html2NodeArr(v), e=>e.slot=n.name )
, n.getRootNode().host ) )
: set(n,v);
val instanceof NodeList || isArr(val)
? [ ...val ].forEach( append )
: append(val);
}
export const setNodeHtml = ( n, val ) => { clear(n); addNodeHtml(n,val) };
function assignedNodesLight(f)
{ if(f?.flatten)
{ const r = [];
const flatten = n=> n.CssChainAssignedNodes ? each(n.CssChainAssignedNodes,flatten): r.push(n);
each(this.CssChainAssignedNodes, flatten );
return r;
}
return this.CssChainAssignedNodes;
}
class
CssChainT extends Array
{
attr(...args)
{ if( args.length < 2 )
return this.getAttribute(...args);
let [k,v,s] = args
, $s = this.$(s);
if(isFn(v))
$s.map((n,i,arr)=>v(n,i,arr,this)).forEach((V,i)=>$s[i].setAttribute(k,V))
else
$s.setAttribute(...args);
return this
}
prop(...args)
{ if( args.length < 2 )
return this[0][args[0]];
let [k,v,s] = args
, $s = this.$(s);
if(isFn(v))
$s.map((n,i,arr)=>v(n,i,arr,this)).forEach((V,i)=>$s[i][k]=V)
else
$s.forEach( el=>el[k]=v);
return this
}
forEach( ...args){ Array.prototype.forEach.apply(this,args); return this }
map( ...args){ return map(this,...args) }
push(...args){ Array.prototype.push.apply(this,args); return this; }
querySelector(css){ return new CssChainT().push( this.querySelectorAll(css)[0] ) }
querySelectorAll(css){ return this.reduce( ($,el)=> $.push(...(el.shadowRoot||el).querySelectorAll(css) ), new CssChainT()) }
$(...args){ return args.length && args[0] ? this.querySelectorAll(...args) : this; }
parent(css)
{ const s = new Set()
, add = n=> s.has(n) ? 0 : (s.add(n), n)
, parentLoop = n=> { while( n=n.parentElement )
if( n.matches(css) )
return add(n);
};
return CssChain(this.map( css ? parentLoop : n=>add(n.parentElement) ).filter(n=>n));
}
on(...args){ return this.addEventListener(...args) }
append(val){ return this.forEach( n=> addNodeHtml(n,val)) }
remove(...args)
{ if( !args.length )
{ this.forEach(el=>el.remove()); return new CssChainT() }
return isFn(args[1]) ? this.removeEventListener(...args) : this.map(el=>el.matches(args[0])).filter(el=>el) ;
}
erase(){ return this.forEach(n=>clear(n)) }
slots(...arr)
{
const selector = arr.length
? csv( arr[0].split(',')
, n=> ['""',"''"].includes(n) || !n
? `slot:not([name])`
: `slot[name="${n}"]`
)
: 'slot';
const ss = this.filter( el=>el.matches && el.matches(selector) );
const ret = this.filter( n => !ss.includes(n) && n.querySelector )
.map( n=>n.shadowRoot || n ).$( arr.length
? csv( arr[0].split(',')
, n=> ['""',"''"].includes(n) || !n
? `slot:not([name])`
: `slot[name="${n}"]`
)
: 'slot');
if( arr.length === 2 )
{ ret.html( arr[ 1 ] );
return this
}
return CssChain([...ss,...ret]);
}
template(n)
{
if( n === undefined )
{
const $s = this.$('[slot]')
.forEach( n => this.$(n.slot ? `slot[name="${n.slot}"]`:'slot:not([name])').length
|| n.parentNode.insertBefore( nodeProp('slot','name',n.slot), n ));
$s.remove();
n = createEl('template');
this.childNodes.forEach( c=>n.content.append(c) );
this.append($s);
}else if( isStr(n) )
{ n = this.$( n );
n.remove();
}
n = n.cloneNode(true);
const content = n.content ? n.content.childNodes : n;
const c = CssChain( content );
c.slots().forEach( s =>
{ const v = this.children.filter( n=>n.slot===s.name );
const p = s.parentNode;
s.CssChainAssignedNodes = [];
s.assignedNodes = s.assignedElements = assignedNodesLight;
const insert = (n,r)=>
{ const k = p.insertBefore( n, r);
n.CssChainAssignedSlot || s.CssChainAssignedNodes.push(n);
n.CssChainAssignedSlot = s;
return k;
};
each(v, e=>e.cssChainSlot = s);
const injectInSlot = (e,s)=>
{ if( e.tagName === 'SLOT' )
{ const q = e.parentNode;
const r = insert(e,s);
each( q.querySelectorAll(`[slot="${e.name}"]`), n=> p.insertBefore( n, r) );
}else
insert(e,s);
}
each( v, e=>injectInSlot( e, s) )
if( v.length ) s.hidden=true;
});
this.children.filter(e=>!e.cssChainSlot).remove();
this.append( CssChain( html2NodeArr('<light-dom></light-dom>') ).append(content) );
return this;
}
get innerText(){ return this.txt() }
set innerText( val ){ return this.txt( val ) }
txt( val, css=undefined )
{ const $ = this.$(css);
if( val === undefined )
return collectionText( $ );
$.forEach( isFn(val)
? (n,i)=>setNodeText(n,val(n,i,$,this))
: n=>setNodeText(n,val) );
return this
}
get outerHTML(){ return this.map( e=>e.outerHTML ).join('') }
set outerHTML( val )
{ return this.forEach( (n,i,arr)=>
{ const p = n.parentNode;
html2NodeArr(isFn(val) ? val(n,i,arr): val )
.forEach( e=> p.insertBefore( (arr[i]=e), n));
n.remove();
})
}
get innerHTML(){ return this.html() }
set innerHTML( val ){ return this.html(val) }
html( val, css=undefined )
{ const arr = css? this.$(css): this;
if( val === undefined )
return collectionHtml( arr );
arr.forEach( isFn(val)
? (n,i)=>setNodeHtml(n,val(n,i,arr))
: n=>setNodeHtml(n,val) );
return this
}
assignedElements(opts){ return CssChain([].concat( ...this.map( el=>el.assignedElements ? el.assignedElements(opts):[] ) ) ) }
assignedNodes(f){ return CssChain([].concat( ...this.map( el=>el.assignedNodes ? el.assignedNodes(f):[] ) ) ) }
cloneNode(...args){ return this.map( el=>el.cloneNode && el.cloneNode(...args) ) }
clone( /* number|array */count=1, cb=undefined )
{
let arr = count;
if( isNum(count) )
arr = Array.from({length: count}, (v, i) => i);
if( isArr(arr) )
{ const ret = [];
this.forEach( n => arr.forEach( (d,i) =>
{ const m = n.ownerDocument.importNode(n,true)
, x = cb && cb( m, d, i, arr );
isStr(x)
? ret.push( ...html2NodeArr(x) )
: isArr(x)
? ret.push(...x)
: ret.push( isNode(x) ? x : m )
}));
return CssChain( ret );
}
const doc = count;
return this.map( el=> doc? doc.importNode( el,true ): el.cloneNode ? el.cloneNode(true):Object.assign({},el) )
}
get firstElementChild(){ return CssChain(this.map( n=>n.firstElementChild).filter(n=>n)) }
get firstChild(){ return CssChain(this.map( n=>n.firstChild).filter(n=>n)) }
get childNodes(){ return CssChain([].concat( ...map( this, el=>[...(el.childNodes || [] )] ) ) ) }
get children(){ return CssChain([].concat( ...map( this, el=>[...(el.children || [] )] ) ) ) }
}
const appliedTypes = new Set()
, OBJ_prototype = Object.getPrototypeOf( {} );
export function
applyPrototype( nodeOrTag, ApiChain )
{ const node = isStr(nodeOrTag) ? createEl(nodeOrTag) : nodeOrTag;
if( appliedTypes.has(node.tagName) )
return;
appliedTypes.add( node.tagName );
for( let k in node )
if( !( k in ApiChain.prototype ) )
setProp( node, k, ApiChain );
for ( let proto; (proto= Object.getPrototypeOf(node)) !== OBJ_prototype && proto != null && !appliedTypes.has(proto) ; )
{ appliedTypes.add(proto);
for( let k of Object.getOwnPropertyNames(proto) )
if( !( k in ApiChain.prototype ) )
setProp( node, k, ApiChain );
}
}
Object.getOwnPropertyNames(window)
.filter(key => key.startsWith('HTML') && key.endsWith('Element')&& key.length > 11 )
.map( key=>key.substring(4,key.length-7).toLowerCase() )
.forEach( tag=>applyPrototype( createEl(tag), CssChainT ) );
export function
CssChain( css, el=document, protoArr=[] )
{
const arr = 'string'===typeof css
? (el.shadowRoot || el).querySelectorAll( css )
: isArr(css) ? css : [css? css.shadowRoot || css : document];
if( isArr( protoArr ) )
{ if( !protoArr.length )
protoArr = [...arr].slice(0,256);
}else
protoArr = [ protoArr ];
protoArr.forEach( el => applyPrototype(el,CssChainT) );
const ret = new CssChainT();
ret.push(...arr);
return ret;
}
export default CssChain;
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